A barrel-mixed adjuvant for suppressing droplet bounce, its preparation method and application

Abstract

The present invention discloses a tank mix adjuvant for suppressing droplet bounce, its preparation method and application, belonging to the technical field of pesticide adjuvants. The above-mentioned tank mix adjuvant for suppressing droplet bounce is composed of the following components in parts by weight: 10-99.9 parts by weight of acrylic emulsion; 5-30 parts by weight of oil; 1-45 parts by weight of emulsifying and wetting agent; 5-30 parts by weight of solvent. Through the synergistic effect of the acrylic emulsion, oil and emulsifying and wetting agent, the present invention can effectively suppress the droplet bounce behavior. At the same time, the tank mix adjuvant for suppressing droplet bounce of the present invention also has the properties of wetting, spreading, anti-evaporation, anti-drift, etc. of traditional tank mix adjuvants.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide adjuvants, and specifically provides a tank-mix adjuvant for inhibiting droplet bounce, a preparation method thereof, and an application thereof. Background Art

[0002] Spraying pesticides on the leaves of crops to control pests and diseases is an important means of agricultural production. After the pesticide liquid is sprayed from the spraying equipment, it begins to contact the target and the crop leaves in the form of droplets. Although the target of the liquid spraying is the target organisms to be controlled, during the spraying process, it is inevitable that part of the liquid enters the environment or contacts non-target substances, resulting in the loss of the liquid. At the same time, the evaporation, drift, and sliding of the liquid are the main factors affecting the loss of pesticides.

[0003] Currently, there are mainly three solutions: improving the performance of the liquid by optimizing the pesticide formulation, regulating the spraying state of the liquid by improving the spraying equipment, and changing the droplet properties by adding a tank-mix adjuvant to the liquid. However, the optimization of the pesticide formulation is more inclined to improve the stability of the pesticide and reduce the particle size of the technical material (active ingredient). The upgrade of the spraying equipment improves the droplet size distribution and movement speed during liquid spraying. The addition of a tank-mix adjuvant can most directly adjust the interaction between the pesticide droplets and the target and the crop leaves.

[0004] During the spraying process of the pesticide liquid, a series of behaviors such as atomization, flight, impact, and rebound will occur. During this process, phenomena such as pesticide droplet drift, evaporation, and loss will inevitably occur. The state and behavior of the liquid droplets are the most important factors affecting the efficacy of pesticides. Among them, the most economical and effective way to control the droplet action process is to add a tank-mix adjuvant to the spraying liquid. The tank-mix adjuvant controls the evaporation, deposition, and bounce of the droplets. When the droplets contact the interface, four behaviors of splashing, deposition, retraction, and rebound will occur, along with two effects of capillary action and viscous action. Existing tank-mix adjuvant products mostly tend to control the evaporation and deposition processes after the droplets are stably present, and lack effective solutions for the bounce behavior that occurs at the moment when the droplets contact the interface of the target and the crop leaves. Summary of the Invention

[0005] Aiming at the loss of the liquid caused by the bounce behavior during the contact process between the droplets and the target and the crop surface during the spraying process of the pesticide liquid in the prior art, the present invention provides a tank-mix adjuvant for inhibiting droplet bounce, a preparation method thereof, and an application thereof. The tank-mix adjuvant for inhibiting droplet bounce of the present invention not only has the function of inhibiting droplet bounce, but also has properties such as wetting, spreading, anti-evaporation, and anti-drift in traditional tank-mix adjuvants.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] On the one hand, the present invention provides a tank mix adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight:

[0008]

[0009] Preferably, the above-mentioned tank mix adjuvant for suppressing droplet bounce is composed of the following components in parts by weight:

[0010]

[0011] Further, the acrylic emulsion includes one or more of acrylic emulsion, vinyl acetate emulsion, organosilicon-modified styrene-acrylic emulsion, and modified acrylate emulsion.

[0012] Further, the emulsifying wetting agent is (C12-C14) gerbert alcohol polyoxyethylene ether and / or castor oil polyoxyethylene ether.

[0013] Further, the oil is one or several of fatty acid methyl ester, fatty acid ethyl ester, and mineral oil.

[0014] Preferably, the mineral oil should have a relative difference in the number of carbon atoms of n-alkanes not greater than 8, an average number of carbon atoms of n-alkanes between 21 and 24, and a non-sulfonated content not less than 92%.

[0015] Preferably, the solvent is water, ethylene glycol, propylene glycol, or ethyl acetate.

[0016] On the other hand, the present invention also provides a preparation method of the above-mentioned tank mix adjuvant for suppressing droplet bounce, including: sequentially adding acrylic emulsion, oil, emulsifying wetting agent, and solvent into a reaction kettle, and stirring and mixing evenly.

[0017] On yet another hand, the present invention also provides an application of the above-mentioned tank mix adjuvant for suppressing droplet bounce. The tank mix adjuvant for suppressing droplet bounce is added to the spray tank in a tank mix form before spraying, and the addition amount is 0.05-2.0% of the total mass of the liquid medicine, and it should be completely sprayed within 24 hours.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention is synergistically affected by acrylic emulsion, oil, and emulsifying wetting agent, and can effectively suppress the bounce behavior of droplets. Compared with the prior art that reduces droplet bounce by reducing surface tension, the acrylic emulsion, oil, and emulsifying wetting agent in the adjuvant of the present invention work synergistically and have a specific structure, which can reduce the bounce energy of droplets and essentially suppress the bounce behavior during the contact process between droplets and the target. At the same time, the tank mix adjuvant for suppressing droplet bounce of the present invention also has the properties of wetting, spreading, anti-evaporation, anti-drift, etc. in traditional tank mix adjuvants. Description of the Drawings

[0020] Figure 1 Images of the process of droplets dripping on the surface of paraffin plates with inclination angles of 0° and 30°;

[0021] Figure 2 Schematic diagram of the process of droplets dripping on the surface of paraffin plates with an inclination angle of 30° in the present invention; where a represents the droplet diameter, b represents the spreading diameter, c represents the bounce height, and d represents the sliding distance;

[0022] Figure 3 Pictures of the relative bounce height and relative spreading coefficient on the surface of paraffin plates with inclination angles of 0° and 30° after diluting 500 times and 1000 times in Example 1 of the present invention; where CK - water is used as a comparison;

[0023] Figure 4 For CT1: 500 times of 77% calcium copper sulfate + 1000 times of 50% chloroisocyanuric acid; CT2: 500 times of 77% calcium copper sulfate + 1000 times of 50% chloroisocyanuric acid + 1000 times of the auxiliary agent in Example 1; pictures of the test results of the pesticide persistence period; CK is the clear water comparison;

[0024] Figure 5 For T1: pure water, T2: 1wt% PEG10000, 1wt% of the auxiliary agent in Example 1; pictures of collecting the drift situation of droplets by the water - sensitive paper color - development method;

[0025] Figure 6 Pictures of the control of canker by 1000 times of 77% copper hydroxide + 500 times of a commercially available auxiliary agent; taken on June 21st, July 4th, and July 11th respectively;

[0026] Figure 7 Pictures of the control of canker by 1000 times of 77% copper hydroxide + 1250 times of the auxiliary agent in Example 1 of the present invention; taken on June 21st, July 4th, and July 11th respectively. Detailed implementation manners

[0027] To make the technical problems, technical solutions, and advantages to be solved by the present invention clearer, the following will be described in detail with specific embodiments.

[0028] The reagents and materials used in the examples and comparative examples, unless otherwise specified, can be obtained through commercial channels. The acrylic emulsion can be 8701 of Guangzhou Rongdong Chemical Co., Ltd., the vinyl acetate emulsion can be 8002 of Guangzhou Rongdong Chemical Co., Ltd., the silicone - modified styrene - acrylic emulsion can be 806A of Guangzhou Rongdong Chemical Co., Ltd., and the modified acrylate emulsion can be KD19 of Guangzhou Rongdong Chemical Co., Ltd.

[0029] The present invention provides a barrel - mixing auxiliary agent for inhibiting droplet bounce, its preparation method and application, and the specific embodiments are as follows.

[0030] Example 1

[0031] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 70 parts by weight of organosilicon-modified styrene-acrylic emulsion; 5 parts by weight of fatty acid methyl ester and 5 parts by weight of fatty acid ethyl ester; 10 parts by weight of Guerbet dodecanol polyoxyethylene ether and 10 parts by weight of castor oil polyoxyethylene ether; 20 parts by weight of water.

[0032] The preparation method of the above barrel-mixed adjuvant for suppressing droplet bounce includes: sequentially adding the above substances into a reaction kettle and stirring and mixing evenly.

[0033] Example 2

[0034] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 10 parts by weight of organosilicon-modified styrene-acrylic emulsion; 20 parts by weight of fatty acid ethyl ester; 15 parts by weight of Guerbet tetradecanol polyoxyethylene ether and 15 parts by weight of castor oil polyoxyethylene ether; 20 parts by weight of ethylene glycol.

[0035] The preparation method is the same as that of Example 1.

[0036] Example 3

[0037] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 20 parts by weight of modified acrylate emulsion; 5 parts by weight of mineral oil; 10 parts by weight of castor oil polyoxyethylene ether; 30 parts by weight of ethyl acetate.

[0038] The preparation method is the same as that of Example 1.

[0039] Example 4

[0040] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 15 parts by weight of vinyl acetate emulsion and 15 parts by weight of acrylic emulsion; 4 parts by weight of fatty acid methyl ester and 6 parts by weight of fatty acid ethyl ester; 40 parts by weight of Guerbet dodecanol polyoxyethylene ether; 5 parts by weight of water.

[0041] The preparation method is the same as that of Example 1.

[0042] Example 5

[0043] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 50 parts by weight of acrylic emulsion; 15 parts by weight of fatty acid ethyl ester; 1 part by weight of Guerbet tridecanol polyoxyethylene ether; 10 parts by weight of ethylene glycol and 10 parts by weight of propylene glycol.

[0044] The preparation method is the same as that of Example 1.

[0045] Example 6

[0046] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 35 parts by weight of styrene-acrylic emulsion; 30 parts by weight of fatty acid methyl ester; 20 parts by weight of Guerbet tetradecyl alcohol polyoxyethylene ether; 10 parts by weight of water.

[0047] The preparation method is the same as that of Example 1.

[0048] Example 7

[0049] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 90 parts by weight of modified acrylate emulsion; 30 parts by weight of mineral oil; 15 parts by weight of Guerbet dodecyl alcohol polyoxyethylene ether, 30 parts by weight of castor oil polyoxyethylene ether; 10 parts by weight of water.

[0050] The preparation method is the same as that of Example 1.

[0051] Example 8

[0052] A barrel-mixed adjuvant for suppressing droplet bounce, which is composed of the following components in parts by weight: 99.9 parts by weight of styrene-acrylic emulsion; 10 parts by weight of fatty acid methyl ester; 10 parts by weight of castor oil polyoxyethylene ether; 15 parts by weight of ethylene glycol, 15 parts by weight of propylene glycol.

[0053] The preparation method is the same as that of Example 1.

[0054] To further highlight the beneficial effects of the present invention, due to limited space, only Example 1 is taken as an example to construct the following comparative examples.

[0055] Comparative Example 1

[0056] In this comparative example, the organosilicon-modified styrene-acrylic emulsion was replaced with an equal amount of water, and the other conditions were the same as those in Example 1.

[0057] Comparative Example 2

[0058] In this comparative example, the organosilicon-modified styrene-acrylic emulsion was replaced with an equal amount of polyurethane emulsion, and the other conditions were the same as those in Example 1.

[0059] Comparative Example 3

[0060] In this comparative example, the fatty acid methyl ester and fatty acid ethyl ester were replaced with an equal amount of water, and the other conditions were the same as those in Example 1.

[0061] Comparative Example 4

[0062] In this comparative example, the Guerbet dodecyl alcohol polyoxyethylene ether and castor oil polyoxyethylene ether were replaced with an equal amount of water, and the other conditions were the same as those in Example 1.

[0063] Comparative Example 5

[0064] In this comparative example, the Guerbet dodecyl polyoxyethylene ether and castor oil polyoxyethylene ether were replaced with an equal amount of polyoxyethylene ether, and the other conditions were the same as those in Example 1.

[0065] Comparative Example 6

[0066] In this comparative example, the Guerbet dodecyl polyoxyethylene ether and castor oil polyoxyethylene ether were replaced with an equal amount of Tween 20, and the other conditions were the same as those in Example 1.

[0067] Comparative Example 7

[0068] In this comparative example, the Guerbet dodecyl polyoxyethylene ether and castor oil polyoxyethylene ether were replaced with an equal amount of fatty alcohol polyoxyethylene ether AEO3, and the other conditions were the same as those in Example 1.

[0069] The present invention detected the performance of the barrel mixing aids prepared in the examples and comparative examples, and the specific details are as follows.

[0070] 1. Test content: spreading performance, relative bounce height, relative sliding distance;

[0071] Example 1 diluted 500 times and 1000 times was respectively prepared, with clear water CK as the control. Under the conditions of constant temperature and humidity in the room, an iX Cameras i-SPEED 2 high-speed photography system was used to control the liquid particle size at 2 - 3 mm, the speed at 3 m / s (±5%), and the contact inclination angle at 0° and 30° on the surface of a paraffin plate (strongly hydrophobic surface). The test process was as Figure 1 and Figure 2 shown. The data was collected and the relative bounce height and spreading coefficient were calculated. The results are shown in Figure 3 , and the sliding distance results under the condition of a 30° inclination angle are shown in Table 1.

[0072] Among them, the calculation formulas for the relative spreading coefficient, relative bounce height, and relative sliding distance are as follows:

[0073] Relative sliding distance = d / a × 100%; Relative spreading coefficient = b / a × 100%; Relative bounce height = c / a × 100%.

[0074] Table 1

[0075]

[0076] From Figure 3It can be seen that when the plane inclination angle is 0°, the auxiliary agent of the present application does not bounce after dilution, while the relative bounce height (rebound height) of clear water can reach 8.12, and the spreading coefficient is greatly improved; when the plane inclination angle is 30°, the relative bounce height of the auxiliary agent of the present application after dilution is reduced by more than half compared with clear water, and the spreading coefficient is greatly improved. As can be seen from Table 1, on the surface of the paraffin plate with an inclination angle of 30°, the relative sliding distance of the liquid droplets after dilution of the auxiliary agent of the present application is greatly reduced. That is, the auxiliary agent prepared by the present invention can significantly reduce the rebound height of the fog droplets and the sliding distance after contact with the interface, while improving the spreading performance.

[0077] The auxiliary agents prepared in Examples 2-8 and Comparative Examples 1-7 were diluted 500 times, and then the spreading performance, relative rebound height, and relative sliding distance were detected at a plane inclination angle of 30°, and the method was as described above. The results are shown in Tables 2-3.

[0078] Table 2

[0079]

[0080]

[0081] As can be seen from Table 2, after the addition of the auxiliary agent of the present invention, the liquid droplets hardly bounce, and at the same time have a lower sliding distance and a higher spreading performance.

[0082] Table 3

[0083] Treatment Relative rebound height Relative sliding distance Relative spreading coefficient Comparative example 1 1.69 4.50 1.47 Comparative example 2 1.49 4.21 1.54 Comparative example 3 1.00 2.48 1.45 Comparative example 4 1.30 2.24 1.31 Comparative example 5 1.45 2.21 1.41 Comparative example 6 0.93 2.81 1.38 Comparative example 7 0.83 2.76 1.29

[0084] As can be seen from Table 3, from Comparative Examples 1-2, it can be seen that the specific emulsion of the present invention has a good inhibitory effect on the rebound of liquid droplets; from Comparative Example 3, it can be seen that the addition of the oil of the present invention can also inhibit the rebound of liquid droplets to a certain extent; from Comparative Examples 4-7, it can be seen that the addition of the specific surfactant of the present invention can inhibit the rebound of liquid droplets to a large extent. At the same time, the auxiliary agent prepared by the present invention through specific emulsion types, the addition of oils, and specific surfactants can inhibit the rebound of liquid droplets, and at the same time make the liquid droplets have a smaller sliding distance and a higher spreading performance.

[0085] 2. Experiment on improving the persistence period of pesticides

[0086] Experiment location: Dongshi Town, Zhijiang City, Yichang City, Hubei Province;

[0087] Experiment time: from June 17th to 27th, 2022, and there was rainfall every day during the experiment period; Experiment object: Newhall navel oranges, with a tree age of 4 years, cultivated in the open air;

[0088] Experiment materials: 77% calcium copper sulfate, 50% chlorobromoisocyanuric acid, Example 1;

[0089] Experimental method: A total of 2 samplings were taken during the period, before pesticide application (June 17) and after pesticide application (June 25), respectively. The copper ion content was detected (10 new leaves were marked for each treatment, and half of them were cut off with scissors. The copper ion content on the leaves was detected before spraying, and the copper ion content of the remaining half of the leaves was detected again 7 days after spraying).

[0090] Experimental treatment: CT1: 500 - fold of 77% calcium copper sulfate + 1000 - fold of 50% chlorobromoisocyanuric acid;

[0091] CT2: 500 - fold of 77% calcium copper sulfate + 1000 - fold of 50% chlorobromoisocyanuric acid + 1000 - fold of the adjuvant 1 in Example 1;

[0092] CK was clear water.

[0093] The meteorological data from June 17 to 27, 2022 are shown in Table 4, and the experimental results are shown in Figure 4 .

[0094] Table 4

[0095]

[0096] It can be seen from Figure 4 that one week after pesticide application, the copper ion content on the leaf surface with the tank - mix adjuvant of the present invention added is 2.7 times that without addition. That is, in the case of more rainfall, the present invention can still significantly improve the retention period of pesticides on crop leaves and improve the pesticide efficacy.

[0097] During the same period (June 17 - June 27), after diluting the adjuvants prepared in Examples 2 - 8 and Comparative Examples 1 - 7 by 1000 times, they were respectively mixed with 500 - fold of 77% calcium copper sulfate and 1000 - fold of 50% chlorobromoisocyanuric acid. The test conditions were the same as above, and the results of detecting the surface copper ion content are shown in Tables 5 - 6.

[0098] Table 5

[0099] Treatment Copper ion content mg / kg (June 17th) Copper ion content mg / kg (June 25th) Example 2 14.9 125.0 Example 3 15.2 136.2 Example 4 15.9 140.1 Example 5 14.1 121.0 Example 6 13.7 139.8 Example 7 13.1 119.6 Example 8 14.8 169.2

[0100] It can be seen from Table 5 that the leaf surface itself contains a certain amount of copper ions. One week after adding the tank - mix adjuvant of the present invention, the copper ion content on the leaf surface is relatively high, that is, the adjuvant of the present invention can significantly improve the retention period of pesticides on crop leaves.

[0101] Table 6

[0102] Treatment Copper ion content mg / kg (June 17th) Copper ion content mg / kg (June 25th) Comparative example 1 10.2 92.1 Comparative example 2 12.8 85.7 Comparative example 3 11.7 86.8 Comparative example 4 10.2 88.4 Comparative example 5 14.9 89.1 Comparative example 6 12.4 92.8 Comparative example 7 12.9 90.5

[0103] As can be seen from Table 6, the additives obtained by changing the type of emulsion or varying the oil and surfactant can all increase the copper ion retention to a certain extent. However, 7 days after pesticide application, the copper ion content on the leaf surface is much lower than that in the examples of the present invention. This is because the specific types of emulsion, surfactant, and oil in the present invention act synergistically to significantly increase the retention of the liquid medicine on the leaf surface.

[0104] 3. Anti-drift and sedimentation promotion test

[0105] Under the same conditions, a hand-held air-blowing sprayer was used to simulate the drift and sedimentation effects of droplets with different treatments (T1: pure water, T2: 1% PEG10000, 1% of Example 1). The drift of the droplets was collected by the water-sensitive paper color development method, and the results are as Figure 5 shown.

[0106] As Figure 5 can be seen, adding Example 1 or PEG can reduce the droplet drift distance. The maximum distance of the droplets treated with 1% of Example 1 is 9 m, which is a 31% decrease compared to 13 m for the pure water treatment. It has excellent anti-drift effect. As an anti-drift agent, the effect of Example 1 is better than that of PEG.

[0107] 4. Pesticide synergistic effect test

[0108] Experimental location: Pancun Tun, Ningwu Town, Wuming District, Nanning City, Guangxi;

[0109] Experimental time: June 21, 2022;

[0110] Experimental object: Rootstock: trifoliate orange, Scion variety: wogan, Tree age: 5 years, Open-field cultivation;

[0111] Experimental materials: 77% copper hydroxide, 30% etoxazole, Example 1, Commercially available additives;

[0112] Spraying standard: Using a 16L backpack sprayer for pesticide application, with a water consumption of 5L per plant.

[0113] Table 7 Synergistic comparison experiment for the control of citrus canker

[0114]

[0115] The image of the control of canker by AT1 is shown in Figure 6 and the image of the control of canker by AT2 is shown in Figure 7 , and the control effects are shown in Table 8.

[0116] Table 8

[0117]

[0118]

[0119] As can be seen from Table 8, the pesticide composition prepared by using the tank-mix adjuvant of the present invention has a good control effect on canker disease.

[0120] The treatments for citrus canker disease were carried out by diluting Comparative Examples 1-7 by 1250 times and diluting 77% copper hydroxide by 1000 times. The results are shown in Table 9.

[0121] Table 9

[0122]

[0123] As can be seen from Table 9, compared with the comparative examples, the synergistic effect of specific types of emulsions, surfactants and oils in the present invention can significantly reduce the incidence rate of diseased leaves of citrus canker disease.

[0124] The control effects on spider mites of the pesticide composition prepared by using the tank-mix adjuvant of the present invention and a commercially available adjuvant after mixing with 30% etoxazole are shown in Table 10.

[0125] Table 10

[0126]

[0127] As can be seen from Table 10, the pesticide composition prepared by using the tank-mix adjuvant of the present invention has a good control effect on spider mites.

[0128] The treatments for spider mites were carried out by diluting Comparative Examples 1-7 by 1250 times and diluting 30% etoxazole by 2000 times. The results are shown in Table 11.

[0129] Table 11

[0130]

[0131] As can be seen from Table 11, compared with the comparative examples, the synergistic effect of specific types of emulsions, surfactants and oils in the present invention can significantly increase the reduction rate of spider mite population.

[0132] In summary, the synergistic effect of acrylic emulsion, oil and emulsifying wetting agent in the present invention can effectively inhibit the bouncing behavior of droplets. At the same time, the tank-mix adjuvant for inhibiting droplet bouncing in the present invention also has the properties of wetting, spreading, anti-evaporation, anti-drift, etc. in traditional tank-mix adjuvants.

[0133] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A barrel-mixed adjuvant for suppressing droplet bounce, characterized in that, It consists of the following components in parts by weight: The emulsion includes one or more of acrylic emulsion, vinyl acetate emulsion, organosilicon-modified styrene-acrylic emulsion, and modified acrylate emulsion; The emulsifying wetting agent is C12-14 Guerbet alcohol polyoxyethylene ether and / or vegetable oil polyoxyethylene ether; The oil and fat is one or several of fatty acid methyl ester, fatty acid ethyl ester, and mineral oil; The mineral oil should have a difference in the number of carbon atoms of the relative normal paraffin not greater than 8, an average number of carbon atoms of the relative normal paraffin between 21 and 24, and a non-sulfonated content not less than 92%; The solvent is water, ethylene glycol, propylene glycol, or ethyl acetate.

2. The preparation method of the tank mix adjuvant for suppressing droplet bounce according to claim 1, characterized in that, It includes: Sequentially add acrylic emulsion, oil and fat, emulsifying wetting agent, and solvent into the reaction kettle, and stir well to mix evenly.

3. The application of the tank mix adjuvant for suppressing droplet bounce according to claim 1, characterized in that, The tank mix additive for suppressing droplet bounce is added to the spray tank in the form of tank mix before spraying, and the addition amount is 0.05%-2.0% of the total mass of the liquid medicine, and it should be completely sprayed within 24 hours.

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